We divide 977300 by 90
The aim is to understand the frequency of 90 in 977300.

Going ahead to step 1:
90 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 90

Going ahead to step 2:
90 can be fit into 97 1 times, resulting in a remainder of 7.
The next digit of our result is 1. 
Result so far: 1.0
If we take 90 away from 97, we end up with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 90

Going ahead to step 3:
90 can be fit into 77 0 times, resulting in a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 77 after subtracting 0 from 77.
Append the next digit (3) from the dividend to 77 and continue with: 773 / 90

Moving on to step 4:
If we divide 773 by 90, we get 8 and a remainder of 53.
Record the quotient 8 as the next digit in the result. 
Result so far: 108.0
Deduct 720 from 773 and we're left with 53.
Bring next digit (0) of the dividend behind the 53 and repeat the process: 530 / 90

Let's proceed to step 5:
90 can be fit into 530 5 times, resulting in a remainder of 80.
Put 5 as the next digit of the answer. 
Result so far: 1085.0
If we subtract 450 from 530, we get 80.
Append the next digit (0) from the dividend to 80 and continue with: 800 / 90

Moving on to step 6:
If we divide 800 by 90, we get 8 and a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 10858.0
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 7:
90 can be fit into 800 8 times, resulting in a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 10858.8
Deduct 720 from 800 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 8:
When dividing 800 by 90, we get 8 with a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 10858.88
The remainder is 80 after subtracting 720 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 10858.88 with a remaining 0.08.